Introduction. The Centers for Disease Control and Prevention (CDC) estimate that between 1 039 000 and 1 185 000 people in the USA are infected with HIV, and approximately 75% are aware of their infection and 25% are not.
February 18, 2010 â Editor's note: Pediatric respiratory emergencies result from a variety of causes, including chronic medical conditions, infections, allergic reactions, and obstruction from foreign bodies.
Epidemiology. Croup is the most common pediatric illness that causes acute stridor, accounting for approximately 15% of clinic and emergency department visits for pediatric respiratory tract infections. It is primarily a disease of infants and toddlers, with a peak incidence from age 6 months to 36 months (3 years).